The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 1986
Filed:
Aug. 06, 1985
Karl G Nystrom, Vaxjo, SE;
Flakt Aktiebolag, Nacka, SE;
Abstract
An air curtain (1) established in a free air space (2) by allowing partly a first air current to pass one or a plurality of nozzles and to form one or a plurality of directed narrow air jets and partly a second air current by means of co-ejection to form a surface layer for the air curtain facing towards the free air space or space. Means (6) are provided to be able to form an air circulation in the air space in a direction counter to that of the air circulation (24, 25) which the surface layer for the air curtain tends to give the air in the air space (2). The free air space can be limited by ceiling, floor and walls in the machine hall, where one or several machines (22, 23) or other devices during operation emit air with high humidity and high temperature. In such an application the air curtain is established from the ceiling and directed downwards to act adjacent to the machines (22, 23). The second air current is wholly or partly extracted from available inter-roof air (12 ) and/or available outdoor air.